Detailed Description

This class is experimental.

Note: O2scl Does not contain the EOS, only provides some code to manipulate it. This class is designed to be used with the file which was originally called eos.tab and now referred to as eos1.tab and stored e.g. at http://user.numazu-ct.ac.jp/~sumi/eos/.

In order to force the EOS to a uniform grid, linear interpolation is used to recast the variation in baryon density, choosing the grid in baryon density to be the same as the section in the table with T=0.1 MeV and $ Y_p = 0.1 $ for all temperature and proton fraction points.

The data for eos_sn_base::E, eos_sn_base::F, eos_sn_base::S, and eos_sn_base::P is not stored in the table but can be computed with eos_sn_base::compute_eg().

See also the documentation at eos_sn_base and the Finite-temperature Equation of State Tables section of the User's guide.

See Shen98 and Shen98b .

Note: Thanks to Matthias Hempel for providing the correct temperature grid.

Todo:: Add the T=0 and Ye=0 data to this class. Separate tables for these cases have been released, but I don't think this class can read them yet.

Definition at line 687 of file eos_sn.h.

Additional data included in this EOS
tensor_grid3 &	log_rho
	Logarithm of baryon number density in $\mathrm{g}/\mathrm{cm}^3$ .

tensor_grid3 &	nB
	Baryon number density in $\mathrm{fm}^{-3}$ .

tensor_grid3 &	log_Y
	Logarithm of proton fraction.

tensor_grid3 &	Yp
	Proton fraction.

tensor_grid3 &	M_star
	Nucleon effective mass in MeV.

tensor_grid3 &	quark_frac
	Fraction of quark matter.

bool	check_grid
	If true, check the grid after load() (default true)

static const size_t	orig_mode =0

static const size_t	quark_mode =1

	eos_sn_stos ()

virtual void	load (std::string fname, size_t mode)
	Load table from filename `fname` with mode `mode`.

Additional Inherited Members
Public Types inherited from o2scl::eos_sn_base
typedef boost::numeric::ublas::vector< double >	ubvector

typedef boost::numeric::ublas::matrix< double >	ubmatrix

Public Member Functions inherited from o2scl::eos_sn_base
void	set_interp_type (size_t interp_type)
	Set the interpolation type of all the o2scl::tensor_grid3 objects to type `interp_type` . More...

void	check_composition (double &max1, double &max2)
	Check the table composition entries.

virtual void	compute_eg ()
	Compute the electron and photon contribution for the full grid. More...

virtual void	compute_eg_point (double nB, double Ye, double T, thermo &th)
	Compute lepton contribution at one point.

virtual double	check_eg ()
	Check electrons and photons. More...

void	check_free_energy (double &avg)
	Test the free energy and store results in `tm`. More...

virtual void	beta_eq_sfixed (double nB, double entr, double &Ye, double &T)
	Compute properties of matter in beta equilibrium at fixed entropy per baryon. More...

virtual void	beta_eq_Tfixed (double nB, double T, double &Ye)
	Compute the electron fraction for beta-equilibrium at fixed density and temperature. More...

bool	is_loaded ()
	Return true if data has been loaded.

void	free ()
	Free allocated memory.

bool	data_with_leptons ()
	Return true if data with lepton information has been loaded.

bool	data_baryons_only ()
	Return true if data with only baryon information has been loaded.

virtual void	load (std::string fname)

virtual void	output (std::string fname)

Public Attributes inherited from o2scl::eos_sn_base
double	m_neut
	Neutron mass in $\mathrm{MeV}$ (defaults to o2scl_mks::mass_neutron times o2scl_const::hc_mev_fm)

double	m_prot
	Proton mass in $\mathrm{MeV}$ (defaults to o2scl_mks::mass_proton times o2scl_const::hc_mev_fm)

size_t	n_nB
	Size of baryon density grid.

size_t	n_Ye
	Size of electron fraction grid.

size_t	n_T
	Size of temperature grid.

std::vector< double >	nB_grid
	Baryon density grid (in $\mathrm{fm}^{-3}$ )

std::vector< double >	Ye_grid
	Electron fraction grid.

std::vector< double >	T_grid
	Temperature grid (in $\mathrm{MeV}$ )

size_t	n_oth
	Number of additional data sets.

tensor_grid3	F
	Total free energy per baryon in MeV (without baryon rest masses but including electron rest mass) More...

tensor_grid3	Fint
	Free energy per baryon without lepton and photon contributions in MeV. More...

tensor_grid3	E
	Total internal energy per baryon in MeV (without baryon rest masses but including electron rest mass) More...

tensor_grid3	Eint
	Internal energy per baryon without lepton and photon contributions in MeV. More...

tensor_grid3	P
	Total pressure in $\mathrm{MeV}/\mathrm{fm}^3$ .

tensor_grid3	Pint
	Pressure without lepton and photon contributions in $\mathrm{MeV}/\mathrm{fm}^3$ .

tensor_grid3	S
	Total entropy per baryon.

tensor_grid3	Sint
	Entry per baryon without lepton and photon contributions.

tensor_grid3	mun
	Neutron chemical potential in MeV. More...

tensor_grid3	mup
	Proton chemical potential in MeV. More...

tensor_grid3	Z
	Proton number.

tensor_grid3	A
	Mass number.

tensor_grid3	Xn
	Neutron baryon fraction.

tensor_grid3	Xp
	Proton baryon fraction.

tensor_grid3	Xalpha
	Alpha particle baryon fraction.

tensor_grid3	Xnuclei
	Heavy nuclei baryon fraction.

tensor_grid3	other [30]
	Other data sets.

tensor_grid3 *	arr [n_base+30]
	List of pointers to data.

boson	photon
	Photon.

fermion	electron
	Electron.

fermion	muon
	Muon.

bool	include_muons
	If true, include muons.

fermion_rel	relf
	Relativistic fermion thermodynamics.

int	verbose
	Verbosity parameter (default 1)

std::vector< std::string >	oth_names
	Labels for the extra data sets included in current EOS.

std::vector< std::string >	oth_units
	Units for the extra data sets included in current EOS.

Static Public Attributes inherited from o2scl::eos_sn_base
static const size_t	n_base =16
	Number of base data sets.

Protected Member Functions inherited from o2scl::eos_sn_base
void	alloc ()
	Allocate memory.

Protected Attributes inherited from o2scl::eos_sn_base
convert_units< double > &	cu
	Unit conversion object (set automatically in constructor)

bool	loaded
	If true, a EOS table was successfully loaded (default false)

bool	with_leptons_loaded
	True if thermodynamics with leptons has been loaded.

bool	baryons_only_loaded
	True if baryon-only thermodynamics has been loaded.

The documentation for this class was generated from the following file:

/home/awsteiner/wcs/o2scl/src/eos/eos_sn.h

Detailed Description

Additional data included in this EOS

Additional Inherited Members